<template>
    <div class="list" ref="wrapper">
        <div>
            <div class="area">
                <div class="title border-topbottom">
                    当前城市
                </div>
                <div class="button-list">
                    <div class="button-wrapper">
                        <div class="button">{{this.currentCity}}</div>
                    </div>
                </div>
            </div>
            <div class="area">
                <div class="title border-topbottom">
                    热门城市
                </div>
                <div class="button-list">
                    <div class="button-wrapper" v-for="item of hot" :key="item.id" @click="handleCityClick(item.name)">
                        <div class="button">{{item.name}}</div>
                    </div>
                </div>
            </div>
            <div class="area" v-for="(item,key) of cities" :key="key" :ref="key">
                <div class="title border-topbottom">
                    {{key}}
                </div>
                <ul class="item-list">
                    <li class="item border-bottom"  v-for="innerItem of item" :key="innerItem.id" @click="handleCityClick(innerItem.name)">
                        {{innerItem.name}}
                    </li>
                </ul>
            </div>
        </div>
    </div>
</template>
<script>
import Bscroll from "better-scroll";
import { mapState , mapMutations} from "vuex";
export default {
  name: "CityList",
  props: {
    hot: Array,
    cities: Object,
    letter: String
  },
  methods: {
      handleCityClick (city) {
          //this.$store.commit("changeCity",city)
          this.changeCity(city)
          this.$router.push("/")
      },
      ...mapMutations(["changeCity"])
  },
  computed: {
      ...mapState({
          currentCity: "city"
      })
  },
  mounted() {
    this.scroll = new Bscroll(this.$refs.wrapper);
  },
  watch: {
    letter() {
      if (this.letter) {
        const element = this.$refs[this.letter][0];
        this.scroll.scrollToElement(element);
      }
    }
  }
};
</script>
<style lang="stylus" scoped>
@import '~styles/varibles.styl';

.border-topbottom {
    &:bofore {
        border-color: #ccc;
    }

    &:after {
        border-color: #ccc;
    }
}

.border-bottom {
    &:bofore {
        border-color: #ccc;
    }
}

.list {
    overflow: hidden;
    position: absolute;
    top: 1.58rem;
    left: 0;
    right: 0;
    bottom: 0;
}

.title {
    height: 0.54rem;
    line-height: 0.54rem;
    background-color: #eeeeee;
    padding-left: 0.2rem;
    color: #666;
    font-size: 0.26rem;
    text-align: left;
}

.button-list {
    padding: 0.1rem 0.6rem 0.1rem 0.1rem;
    overflow: hidden;
}

.button-wrapper {
    float: left;
    width: 33.33%;
}

.button {
    margin: 0.1rem;
    text-align: center;
    border: 0.02rem solid #ccc;
    padding: 0.1rem;
    border-radius: 0.06rem;
}

.item {
    line-height: 0.76rem;
    padding-left: 0.2rem;
}
</style>
